Family name D-J (D-J 
) , globally, is an extremely rare cognomen. The family name D-J is habitual in New Zealand, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and the United States. More frequently, D-J is the forename as well as the last name. Parts of the name also exists independently as a first name D, and a first name J.
| VARIANT | COUNTRY |
|---|---|
| D-J | Canada, Philippines, New Zealand, United States, Nigeria |